The revised tires introduced after the British Grand Prix have not made for dull races, Pirelli claim.

F1’s official tire supplier revised its product after a series of high-speed tire failures at Silverstone.

But it denied the more conservative compounds have sapped the life from recent races.

Pirelli motorsport director Paul Hembery dismissed the claim as “nonsense”, telling Autosport: “I thought the German and Hungarian Grands Prix were two of the best races we had ever had in Germany and Hungary.”

Sebastian Vettel has won three of the four races since Silverstone but Hembery says his success is not down to Pirelli’s change of policy

“We try to do our bit – but there is only so much we can do,” said Hembery. “At the end of the day, Red Bull has done a phenomenal job and Sebastian has been great.”

Pirelli’s tire choice for this weekend’s Singapore Grand Prix – the super-soft and medium tires – is more conservative than what has been used before.

“The tires we are bringing to Singapore this year represent a change from last year, when we went for super-soft and soft,” Hembery explained. “This is because the tires are generally softer across the board this year in order to maximize performance and grip.”